The scratch resistances of two different kinds of automotive coatings were evaluated by scratch tests.

利用划痕实验方法评价两种不同的汽车涂层的抗划伤能力。

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Either so that they wouldn't have to carry everything with them or so they could save time once they arrived at a site by not having to make stuff from scratch.

这样他们要么就不用把所有东西都带在身边了，要么他们到了一个地方的时候不用从头开始做东西，可以节省时间。

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How did you come by that scratch on your cheek?

你脸颊上的抓伤是怎么来的？

《牛津词典》

Because you won't want to do everything from scratch yourself, you want to be able to look at what is being created by somebody else and understand what is inside of there, whether it works correctly and how you can build on it This is one of the few places where plagiarism is an OK thing.

因为你们不会想无论做什么事情,都由你们自己亲自上阵，你们希望有能力读懂,别人创造的语言,并了解其中的内涵，运转的正确性和如何在其基础之上继续发展,这是为数不多的,合理的作弊行为之一。

麻省理工公开课 - 计算机科学及编程导论课程节选

But for the next week or two when you're writing programs, at least for the first time, generally if you're trying Scratch to debug them like you might have been trying to troubleshoot Scratch, you're probably going to reason - through it by looking through the your code -- -- top to bottom, maybe engage a staff member for help -- but your friend will also be printf.

但是，在接下来的一两周内，当你们写程序的时候，或至少在第一次写的时候，通常如果你在调试程序,就像你们可能已经试着调试过,你们或许是通过查看你们的代码,来推断你们的程序-,从头到尾，可能还需要别人的帮忙-,但是你的朋友也将要打印输出。

哈佛公开课 - 计算机科学课程节选

> So this was a Scratch project submitted by one of last year's students.

>，这是由去年一个学生完成的,一个Scratch项目。

哈佛公开课 - 计算机科学课程节选

Director John Waters sent up the concept by having scratch-and-sniff cards passed out with tickets at his 1981 film, Polyester.

FORBES: Flops

Under the scheme films will be jointly developed from scratch by BBC Films and the Film Council.

BBC: Two to fund more films

Now it's in the vanguard of a new trend: the REIT that adds to its portfolio by building from scratch.

FORBES: On The Cover/Top Stories